which al team has the highest all-time winning percentage

The New York Yankees have the best winning percentage by an AL team, winning 57.0 percent of the time.

	TEAM	W%	W	L	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Yankees	.570	10,872	8,216	19,176	653,521	93,216	173,428	28,805	5,507	17,515	86,637	69,038	4,959	95,884	11,751	2,828	740,439	265,792	51,827	9,601	3,320	2,869	10,758	.265	.339	.407	.745
2	Astros	.548	1,097	906	2,003	68,166	9,437	17,439	3,499	245	2,568	9,022	6,438	764	15,830	1,134	418	76,136	29,132	6,312	224	544	268	1,582	.256	.325	.427	.752
3	Red Sox	.518	10,044	9,336	19,463	666,123	90,918	177,700	33,354	5,616	14,729	84,326	67,162	4,856	96,544	9,724	2,577	752,116	266,473	53,699	10,605	3,370	3,011	11,624	.267	.337	.400	.737
4	Guardians	.513	9,940	9,443	19,474	663,602	87,976	175,517	31,326	5,512	14,035	81,330	62,968	4,877	95,572	12,004	3,410	746,317	259,972	50,873	11,484	3,386	2,569	10,578	.264	.331	.392	.723
5	Tigers	.503	9,763	9,642	19,498	664,850	89,528	175,573	29,761	6,324	14,718	82,459	65,897	4,491	97,755	11,333	2,949	749,392	262,136	50,803	11,010	3,144	2,455	10,776	.264	.333	.394	.727
6	Blue Jays	.500	3,855	3,856	7,714	264,282	35,737	68,775	13,744	1,503	8,407	33,909	24,510	2,472	49,724	4,621	1,979	294,945	110,746	23,654	1,526	2,155	1,418	6,026	.260	.326	.419	.745
7	White Sox	.498	9,654	9,714	19,471	659,233	84,558	171,086	28,385	5,559	12,414	77,750	62,440	5,286	93,032	13,672	3,496	742,590	247,831	46,358	12,385	3,246	2,468	10,600	.260	.327	.376	.703
8	Angels	.495	5,093	5,205	10,301	349,413	44,557	89,283	15,434	1,822	9,375	41,937	32,685	2,891	63,909	6,113	3,120	391,331	136,486	26,631	3,547	2,795	2,500	7,947	.256	.322	.391	.713
9	Rays	.489	2,168	2,264	4,432	150,671	19,700	38,234	7,596	863	4,634	18,741	14,287	1,709	34,410	3,343	1,261	168,604	61,458	13,093	753	1,184	695	3,101	.254	.323	.408	.731
10	Athletics	.486	9,405	9,945	19,437	658,868	85,814	169,575	29,417	5,342	14,300	79,101	64,867	4,768	100,062	12,164	3,228	742,328	252,576	49,059	10,697	3,128	2,281	10,691	.257	.327	.383	.710
11	Brewers	.482	2,200	2,367	4,570	155,611	20,203	40,437	7,010	1,037	3,789	18,992	14,680	932	24,420	3,135	1,734	174,383	60,888	11,836	1,784	1,376	1,156	3,354	.260	.325	.391	.716
12	Twins	.481	9,329	10,047	19,485	664,643	85,656	174,210	29,927	6,347	12,162	78,871	62,720	5,220	95,456	12,102	3,104	745,970	253,317	48,436	10,198	3,189	2,670	11,047	.262	.329	.381	.710
13	Mariners	.478	3,689	4,022	7,713	263,091	34,284	67,562	12,591	1,265	7,903	32,573	24,931	2,415	50,759	5,137	2,192	294,503	106,392	21,759	1,963	2,103	1,690	5,754	.257	.324	.404	.729
14	Royals	.477	4,290	4,703	8,995	307,598	39,324	80,723	15,123	2,302	7,131	37,129	26,312	2,512	52,884	7,161	2,922	341,504	121,843	24,556	2,388	2,694	1,879	6,853	.262	.323	.396	.719
15	Rangers	.476	4,899	5,383	10,288	351,200	46,294	90,502	16,150	1,902	10,322	43,749	33,253	2,746	66,121	6,037	2,869	393,030	141,422	28,374	2,972	2,859	2,267	7,861	.258	.324	.403	.727
16	Orioles	.475	9,195	10,171	19,476	661,510	84,093	170,609	29,514	4,924	14,570	77,764	63,639	4,529	99,390	10,643	2,809	743,342	253,681	49,008	10,534	3,130	2,587	10,908	.258	.326	.383	.709
17	Orioles	.435	118	153	276	9,349	1,476	2,666	381	218	57	1,231	786	106	797	396		10,459	3,654	656	218				.285	.347	.391	.738